drivers: autoconvert trivial BKL users to private mutex

[pandora-kernel.git] / drivers / char / pcmcia / cm4040_cs.c

diff --git a/drivers/char/pcmcia/cm4040_cs.c b/drivers/char/pcmcia/cm4040_cs.c
index 815cde1..04c0a89 100644 (file)
--- a/drivers/char/pcmcia/cm4040_cs.c
+++ b/drivers/char/pcmcia/cm4040_cs.c
@@ -24,7 +24,7 @@
 #include <linux/fs.h>
 #include <linux/delay.h>
 #include <linux/poll.h>
-#include <linux/smp_lock.h>
+#include <linux/mutex.h>
 #include <linux/wait.h>
 #include <asm/uaccess.h>
 #include <asm/io.h>
@@ -49,6 +49,7 @@
                           __func__ , ## args);         \
        } while (0)
 
+static DEFINE_MUTEX(cm4040_mutex);
 static char *version =
 "OMNIKEY CardMan 4040 v1.1.0gm5 - All bugs added by Harald Welte";
 
@@ -444,7 +445,7 @@ static int cm4040_open(struct inode *inode, struct file *filp)
        if (minor >= CM_MAX_DEV)
                return -ENODEV;
 
-       lock_kernel();
+       mutex_lock(&cm4040_mutex);
        link = dev_table[minor];
        if (link == NULL || !pcmcia_dev_present(link)) {
                ret = -ENODEV;
@@ -473,7 +474,7 @@ static int cm4040_open(struct inode *inode, struct file *filp)
        DEBUGP(2, dev, "<- cm4040_open (successfully)\n");
        ret = nonseekable_open(inode, filp);
 out:
-       unlock_kernel();
+       mutex_unlock(&cm4040_mutex);
        return ret;
 }